The Koopa Clown is an unlockable kart part in Mario Kart 7 and Mario Kart 8 Deluxe, based upon Bowser's Koopa Clown Car. It boosts handling, but lowers acceleration and off-road slightly. It should also be noted that the Koopa Clown is tied with the Birthday Girl and Cloud 9 for having the highest handling of all kart bodies, and it has the highest handling of any kart body that doesn't have a negative impact on the Speed stat.

In terms of its hidden stats, the Koopa Clown offers one of the strongest mini-turbo boosts in the game; a trait that it shares with the Barrel Train and Bumble V kart bodies. Its engine noise is similar to that of the Tyrant and Hurricane from Mario Kart DS.

The kart reappears in Mario Kart 8 Deluxe as an unlockable kart body, and it is redesigned to appear smaller. The exhaust pipes are shorter and it is equipped with a pair of propellers that open up on gliders and anti-gravity segments. Much like the Landship, the kart has different pallet colors for the Koopalings, which match the colors of the Koopa Clown Cars they used in Super Smash Bros. for Nintendo 3DS / Wii U. For other characters, it uses the default green color. Its engine sound is shared with the Biddybuggy. CPU Bowser, Bowser Jr. and the Koopalings occasionally use this body during races.